diff --git a/docs/Project.toml b/docs/Project.toml
index 0d8fbc73..bdb877fd 100644
--- a/docs/Project.toml
+++ b/docs/Project.toml
@@ -1,5 +1,6 @@
 [deps]
 Documenter = "e30172f5-a6a5-5a46-863b-614d45cd2de4"
+QuantumInterface = "5717a53b-5d69-4fa3-b976-0bf2f97ca1e5"
 
 [compat]
 Documenter = "~0.26"
diff --git a/docs/make.jl b/docs/make.jl
index 10321815..6cf598c8 100644
--- a/docs/make.jl
+++ b/docs/make.jl
@@ -1,4 +1,5 @@
 using Documenter
+using QuantumInterface
 using QuantumOpticsBase
 
 pages = [
@@ -8,7 +9,7 @@ pages = [
 
 makedocs(
     sitename = "QuantumOpticsBase.jl",
-    modules = [QuantumOpticsBase],
+    modules = [QuantumOpticsBase, QuantumInterface],
     pages = pages,
     checkdocs=:exports
     )
diff --git a/docs/src/api.md b/docs/src/api.md
index 7933c370..957051a2 100644
--- a/docs/src/api.md
+++ b/docs/src/api.md
@@ -226,7 +226,7 @@ dense
 sparse(::AbstractOperator)
 ```
 
-* Time-dependent operators. See also [Time-dependent operators](@ref).
+* Time-dependent operators.
 
 ```@docs
 current_time